The DS2411 silicon serial number is a low-cost, electronic registration number with external power
supply. It provides an absolutely unique identity that can be determined with a minimal electronic
interface (typically, a single port pin of a microcontroller). The DS2411's registration number is a
factory-lasered, 64-bit ROM that includes a unique 48-bit serial number, an 8-bit CRC, and an 8-bit
family code (01h). Data is transferred serially through the Dallas Semiconductor's 1-Wire® protocol. The external power supply is required, extending the operating voltage range of the device below typical 1-Wire devices.
Key Features
Applications/Uses
Unique, Factory-Lasered and Tested 64-Bit
Registration Number (8-Bit Family Code
Plus 48-Bit Serial Number Plus 8-Bit CRC
Tester); Guaranteed No Two Parts Alike
Standby Current <1µA
Built-In Multidrop Controller Enables
Multiple DS2411s to Reside on a Common
1-Wire Network
Multidrop Compatible with Other 1-Wire
Products
8-Bit Family Code Identifies Device as
DS2411 to the 1-Wire Master
Low-Cost TSOC, SOT23-3, and Flip-Chip
Surface-Mount Packages
Directly Connects to a Single-Port Pin of a
Microprocessor and Communicates at up to
15.4kbps
Overdrive Mode Boosts Communication
Speed to 125kbps
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